Tree stand extension



FIG. 1 is a right elevation view of a tree stand extension showing my new design, the opposite side being a mirror image of the shown;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is an isometric view thereof in a used condition.

The broken lines in FIG. 6 of the drawings depict a tree stand as environmental subject matter only and form no part of the claimed design.

The FIGS. 4 and 5 shown without the side bars for ease of illustration. 

The ornamental design for a tree stand extension, as shown and described. 